Car-ventilator.



110.846,098. 1 PATBNTED 111111.15, 1907.

1.11. EDWARD. y

GAR VENTILATOR. APPLICATION FILED 1111111.14, 1905.

2 SHEETS-(SHEET 1.

No. 846,098. PATENTED MAR. 5, 19o?.

J. H. BLWARD.

CAR VENTILATOR. APPLICATION FILED JUNE 14,1905.

rn: NoRRls Parras cn.. wAsmNoroN. o. c.

at its lower edge upon the roof of the car.

` interior of the bearing-frame.

JOHN H. ELWARD, OF HUTCHINSON, KANSAS.

CAR-VENTILTOR.

Specification of Letters Patent.

Patented March 5, 1907.

Application filed June 14, 1905. Serial lio, 265.235.

To @ZZ LUI/1,071@ it may concern: y

Be it known that I, JOHN H. ELwAnD, a l citizen of the United States, residing at l Hutchinson, in the county oi Reno and State of Kansas, have invented certain new and uselul Improvements in Car-Ventilatore, of i which the following is a specification, reference being had therein to the accompanying l drawing. I

This invention -relates to improvements in car-ventilators, it pertaining particularly to that style of ventilatoi` in which a current oi air is drawn into the car by mechanical devices and then distributed within the car, the action of the devices being automatic in nature.

Figure 1 is a view, partly in side elevation and partly in cross-section, of a car provided with a ventilator embodying my improvements. Fig. 2 is a section on the line 2 2, Fig. 1. Fig. 3 is a side elevation of the ventilating apparatus drawn on a larger scale than Fig. 1.

In the drawings, A represents the cai' as an entirety. It may be or any well-known style.

B represents as an entirety the Ventilating apparatus, which may be arranged at either end, or there may be two or them at opposite ends of the car, if desired. This Ventilating apparatus consists of a motor C, an air-pump l D, and an air-distributing device E. Prefer ably the motor for each Ventilating device consists of two windmills or wind-wheels arranged at either side of the car in the saine vertical transverse plane. These mills are identical in construction, cach comprising the bearing-frame 1 and a wind or paddle wheel 2. The bearing-frame 1 is preferably constructed as shown, having the side walls 1a, of sheet metal, arranged at an angle to each other and to the body or the car and rigidly secured to the roof of the car, and the end plates 1b and 1C. The end wall 1b at the inner end ,of the bearing-frame is secured at either end to the said side walls 1a and rests The end wall 1C at the outer end of the frame is secured at its ends to the side walls of the frame and extends from the upper edges of the said side walls to a point somewhat above the roof of the car, so as to leave an open space free between the root of the car and the under edge of the wall 1C, through which rain, snow, dirt, or the like may pass oi from the 4 indicates a crank-shaft mounted in bearings 5 5 in the said bearing-iframe. The paddles or blades 5 or the windmill are rigidly secured to the said crank-shalt and are preferably arranged as g shown, each at right angles to the next adj acent one. The crank-shaft 4 extends inwardly to the central vertical longitudinal plane or the car and has its inner end mounted in the bearing 6, carried by a shaft-hanger 7, suspended from the roorl or the car.

8 indicates the crank at the inner end oi the crank-shaiit.

The pump D preferably consists oi a ver tically-arranged cylinder 9, having at its upper end a duct 9, leading through the rooi1 of the car and communicating with the outside air.

1() indicates the pump-plunger arranged within the cylinder and adapted to reciprocate therein, and 10 the plunger-rod.

11 is a check-valve arranged in the cylinder between the plunger-head and the port through which the said cylinder 9 may be brought into communication with the outside air. This check-valve 11 may be of any well-known type, it simply serving to admit air to the pump-cylinder on the downward or suction stroke or the plunger therein and to close during the return or forcing stroke of the plunger.

12 is a duct leading Jfrom the upper end of the cylinder 9 downwardly and opening into the interior oi the oar. Through this duct 12 the air is forced by the pump-plunger on its upward stroke.

13 is a cross-bar secured to the lower end of the plunger-rod, and 14 are connecting-rods connecting the cranks 8 with the ends of the said cross-bar 13.

Immediately beneath the lower end of the air-delivery duct 12 I arrange a cup-shaped distributer 15, into the cavity of which the lower en d of the said pipe extends. This cup like distributer is secured in position by means of braces 1.5, rigidly secured to the convex surface of the distributer and to the walls of the duct 12. 16 is a duct communieating at its upper end with the interior of the said cup-shaped distributer through the port arranged directly in line with the airsupply duct 12 and conimimicating at its lower end withthe outer air, This pipe 16 is adapted to furnish an outlet for the dust or Jforeign particles which may be drawn into the pump and forced through the air-duct 12. The diameter of the duct 16 is relatively much smaller than the diameter of the air- IIO duct 12, so that but a small portion of the air away from the currents of air to which the passing through the duct 12 can escape l cowl is subjected, so as to insure that the air through the duct 1 6, and at the same time which is drawn into the pump-cylinder will the pressure within the duct 16 will remain l be as free from dust and the like as possible. su'l'liciently high to insure that all foreign Whatlclaim is* particles will be rapidly carried away. 1. Inacar-ventilating apparatus, the com- 16a is a valve or stop-cocl in the pipe 16, l bination of an open-ended bearing or supadapted to permit the cutting olf ofthe pasporting-frame having inclined side walls 11L sage of air therethrough when desired. ll`he arranged to be secured to the roof of. a car, connect-ion between the pipe 16 and the cupand end plates 1lo and 1C, the outer end plate shaped distributer 15 may be through a funn being arranged with its lower edge somewhat nel-shaped port 17, if desired, this funnel* above the roof of the car so as to leave an shaped port insuring that all particles of dust open space for the escape of snow, dirt and and foreign material carried over by the airthe like, a wind-wheel located in the said duct 12 will be delivered directly to the bearing-frame and air-forcing means conduct 16. necte'd with and operated by the said Wind- 18 is a Valve arranged in the duct 9', exwheel, substantially as described. tending from the cylinder to the open air and 2. In a car-Ventilating apparatus, the comadapted to regulate the amount of air that bination of an open-ended and open-top bearcan be drawn into the )umping-cylinder. ing or supporting frame, the outer end wall The blades of the cooperating fans at either thereof having its lower edge above the supside of the car may preferably be staggered port to which the frame is secured to permit with relation to each other, as indicated in the escape of snow and like material, a hood Fig. 2, so as to insure that one blade of one of 19 over the top of the frame, a wind-wheel the fans will always be in position to oppose mounted in the said bearing-frame, and airthe force of the air to which the fan is subforcing` means connected with and operated jected. by the said windwheel, substantially as de- In order to avoid clogging up of the intescribed. rior of the bearing-standards during snow- 3. In a car-Ventilating apparatus, the comstorms, l have provided a hood or deflector bination of a wind-wheel supported on the 19, arranged above and extending over the top of a car, a pump located inside the car Wind-wheel and having the sloping walls 19 and connected with and operated by the 19a, which tend to carry ofl' or deflect the wind-wheel, an inlet-pipe leading from the snow from the blades or paddles of the wheel., outer air to the pump, a cowl at the end of while at the same time their ends are above the inlet-pipe, and distributing-pipes within the tops of the fan-blades, so that they will the car leading from the pump, substantially not in any wise interfere with the currents of as described. air that are to act uponthe blades. In testimony whereof lf aliX my signature 20 is a cowl swiveled to the upper end of in presence of two Witnesses. the duct 9', which leads from the pumping- JOHN H. ELVARD. cylinder to the outside air and having the directing-blade 20, adapted to maintain the said cowl with its mouth at all times directed lVitnesses:

E. R. ALEXANDER, AUGUSTE J. LIX. 

